Incinerating-furnace.



w. B. WRIGHT. INClNERATiNG FURNACE.

APPLICATION FILED SEPT. 6, 1912.

1,205.3 1 O. Patented Nov. 21, 1916.

overhead storage-bin (not shown).

WALTER B. WRIGHT, or oHIcAeo, ILLINOIS.

INCINEBA'IING-FUBNACE.

Specification of Letters Patent.

Patented Nov, 21, 1316.

Application filed September 6, 1912. Serial No. 718,846.

To all whom it may concern Be it known that I, WALTER B. VRIGHT, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful improvements in Incinerating-Furnaces, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which the invention appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

Among the leading objects sought and attained by the invention are, to provide an improved means for feeding the garbage or like material to be burned into theincinerating chamber of the furnace without the necessity of first shutting off the forced 7 draft and creating an objectionable cooling through the in-rush of cold air to the incinerating chamber through the feed open ing, to aiford greater protection to the operator in the feeding operation by lessening the manual and increasing the automatic parts of that operation; and to insure the introduction of substantially uniform and equal successive charges of material to be burned into the inoinerating chamber.

WVith these and other minor objects of improvement in view, my invention consists in the improved feeding mechanism for incincrating furnaces, substantially as hereinafter described and defined, as to its novel features, in the appended claims.

A practical embodiment of my invention is illustrated in the accompanying drawings, in which Figure 1 is a detail view in cross-section through the feed opening and door of the furnace and showing in part the operating mechanism of the door. Fig. 2 is a detail view partly in elevation and partly in section of the parts shown in Fig. 1 as viewed from the right of the latter figure.

Normally covering and closing a central feed opening 13 in the dome of the furnace are a pair of doors 29 that are adapted to move simultaneously toward and from each other to cover and uncover said feed-opening. Directly above said doors when in their normal or closed position is a feed-hopper 30 that, in practice, is suspended from an The doors 29 are suspended by trolleys 32 from trolley-rails 33 secured to opposite sides of the hopper 30 by brackets 34:; each trolley rail being inclined slightly upwardly from its central point which is vertically in line with the meeting edges of the doors when closed.

Each of the hangers of the trolley 32 comprises an apertured door bracket 32 and a trolley bracket 32", the lower portion of which is threaded and passes through the tapped aperture of said door bracket, being confined by a nut 58 and lock-nut 59, where by the trolley hanger as a whole is vertically adjustable lengthwise so as to secure a perfect fit of the door 29 when in closed position on the margins of the feed-opening.

On the outer ends of the rails 33 are secured brackets 35, on which are journaled guide-pulleys 36 for a purpose hereinafter described.

The bottom of the hopper 30 is formed by a pair of bottom sections having the form of shallow pans 37 that are rigidly mounted on the doors 29 by connecting and spacing bars 38 so as to partake of the to and fro movements of the said doors in opening and closing. The lower edges of the side walls of the hopper 30 are suitably formed to fit within the upturned edges of the bottom sections 37 when the latter are in normal closed position, and the bottom sections 37 are spaced from the doors 29 sufliciently to avoid an undesirable heating by reason of the heat-insulating air space between said doors and bottom sections.-

The doors 29 and attached pans 37 forming the bottom of the hopper 30 may, of course, be manually operated; but preferably thcy are power operated in an outward or opening direction and allowed to return to closed position by gravity through the following mechanism: Journaled parallel with one side of the hopper 30 and extending cross-wise of the axes of the guide-pulleys 36 is an operating shaft 39 driven from any convenient source of power, and having keyed thereon a bevel gear l0 that meshes with and drives a companion bevel gear 41 running loose on the outer end of a drum-shaft 42 that is conveniently journaled in brackets 43 on one side of the hopper 30. Fast on the shaft 42 on opposite sides of the hopper 30, respectively, are grooved drums ie, but one of which is here shown as they are duplicates, secured to' each of which is a pair of cables 45 extending in opposite directions from the upper and lower sides of said drums, as clearly shown in Fig. 2; said cables passing over the guide-pulleys 36 and being attached at their inner ends to the outer door trolleys 32. From this it will be manifest that when the shaft 4-2 is rotated in one direction, the cables 45 will be wound up on the drums ate, and the doors 29 and hopper-bottom sections or pans 37 will be simultaneously drawn apart to fully expose the feed-opening 13 and simultaneously allow the contents of the hopper 30 to drop through said feed-opening into the furnace. When the drive is discontinued from the shaft 42, the doors and hopper-bottom sections will return freely to closed position by gravity. I render this operation of the feed doors automatic by the following means: The bevel pinion ll carries a clutch sleeve a7 that is adapted to engage and disengage a cooperating clutch-sleeve 48 that is splined on the shaft 42 and is operated by a clutchdwer a l pivoted at 50 to a bracket 51 on the feedhopper 30. The upper end of this lever it) carries a handle 52 for manually operating the lever in a direction to couple the clutch sleeve and efi ect the opening movement of the doors. The lever i9 has a depending portion 53 below its pivot 50 carrying a roller 54, which latter is adapted to be struck, when the doors reach the limit of their outward movement, by a cam 55 carried by and projecting laterally from one edge of one of the hopper-bottom sections or pans 37, so as to separate the clutchsleeves 47 and 48, and allow the doors and hopper-bottom sections to promptly and automatically return to closed position after the discharge of the contents of the hopper into the furnace. It will thus be seen that the attendant has only to throw the clutch in when it is time to admit a fresh charge of material to be burned into the furnace, the closing of said doors and of the bottom of the hopper being automatically effected in the manner and by the mechanism described.

At each side of the feed-opening 13 is lolocated a poke-hole 56 that is normally closed'by a hinged lid 57, by opening which latter and inserting iron rods or pokers, each charge can be poked down onto the firegrate (not shown) where it is thoroughly incinerated.

I claim- 1. In an incinerating furnace, the combination with the furnace chamber having a feed-opening in its roof, of a feed hopper above said opening, trolley rails secured to opposite sides of said hopper, said trolley rails being inclined upwardly from a point centrally above said opening, a pair of gravity-closable sliding door sections for said feed-opening, vertically adjustable trolley hangers secured to said door sections and carrying wheels engaging said trolley rails, hopper-bottom 7 closure sections rigidly mounted upon and spaced from said door sections, respectively, andpower mechanism for moving said door sections to open posi tion.

2. In an incinerating furnace, the combination with the furnace chamber having a feed opening in its roof, of a gravity-closable sliding door guarding said feed opening, a feed hopper above said opening hav ing a sliding bottom secured to and movable with said door, power operated dooropening mechanism, and means for auto maticaly disconnecting said door-opening mechanism at the limit of the door-opening movement.

3. In an incinerating furnace, the combination with the furnace chamber having a feed opening in its roof, of a feed hopper directly above said opening, a pair of trackways located on opposite sides of said hopper, each of said track-ways being inclined upwardly from a point substantially coincident with the center of said hopper and feed opening, a pair of gravity-closable door sections suspended from said track-ways on opposite sides of the center thereof, hopperbo-ttom sections secured to and movablewith said door sections, power operated dooropening mechanism, and means for automatically disconnecting said door-opening mechanism at the limit of the door-opening movement.

4. In an incinerating furnace, the combination with the furnace chamber having a feed opening in its roof, of a feed hopper directly above said opening, a pair of trackways located on opposite sides of said hopper, each of such track-ways being inclined upwardly from a point substantially coincident with the center of said hopper and feed opening, a pair of door sections suspended from said track-ways on opposite sides of the center thereof, hopper-bottom sections secured to and movable with said door sections, power operated door-opening mechanism including a clutch, manually operable means for throwing in said clutch to effect the opening movement of said door and hopper-bottom sections, and means serving to automatically throw out said clutch at the limit of the door and hopper-bottom opening movement.

WALTER B. WRIGHT.

Witnesses:

JoYoE M. Lurz, SAMUEL N. POND;

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. G. 

